Not sure about the damage (actually any intense activity where enough of emotional aspect is involvled can damage human state of mind under certain conditions). But to become a trader (assuming successful one) person indeed needs to completely change his/her mind and literally die and be born...
Yeah I think it's a good idea. I've seen quite a lot of info on both on the Internet. Don't remember where exactly but Google is usually able to find what you seek for. :)
Wow... Quite a well defined call! Wish you good luck in it (cause from my side I only care about decent swings in either direction during the day :) ).
I got money! I run New York! Enough of EGO now? :D :D :D
P. S. Yoohoo's help is seriously definetely invaluable so it's not even an ego question... Simply it put all my trading to a completely new level!